Tellurium-123m

ISOTOPE ^123mTe
Half Life / Daughter	119.7 days to tellurium-123
Major Radiation	Gamma - 159 keV
Form	Elemental
Activity	>= 1.0 mCi/mg
Radiopurity	Major impurity is I-131 at ~ 150 uCi/mg Te
PRODUCTION
Source	Neutron capture on enriched in tellurium-122
Processing	Encapsulated in SiO₂, irradiation capsule or as a solution in HNO₃ or HCl
DISTRIBUTION
Shipment	Nonreturnable container
Availability	6-8 weeks advance order
Unit of Sale	Lot
Contact	Oak Ridge National Laboratory Isotope Business Office Call: (865) 574-6984 Fax: (865) 574-6986 email: isotopes@ornl.gov